Home / 12,768,400.12-17,620,817.49-6,967,500.17

Finding the Fourth Proportional to 12,768,400.12, 17,620,817.49 and 6,967,500.17

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Solution

The fourth proportional to 12,768,400.12, 17,620,817.49 and 6,967,500.17 is: 9,615,382.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,768,400.12 : 17,620,817.49 = 6,967,500.17 : x
  2. Step 2: Convert to fraction form
    12,768,400.12/17,620,817.49 = 6,967,500.17/x
  3. Step 3: Cross multiply
    12,768,400.12x = 17,620,817.49 × 6,967,500.17
  4. Step 4: Simplify right side
    12,768,400.12x = 122,773,048,868,126.98
  5. Step 5: Solve for x
    x = 122,773,048,868,126.98/12,768,400.12
  6. Step 6: Final answer
    x = 9,615,382.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.